3x+(-3x)-4(x+2x)=

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Solution for 3x+(-3x)-4(x+2x)= equation: 


Simplifying
3x + (-3x) + -4(x + 2x) = 0

Combine like terms: x + 2x = 3x
3x + (-3x) + -4(3x) = 0

Remove parenthesis around (3x)
3x + (-3x) + -4 * 3x = 0

Multiply -4 * 3
3x + (-3x) + -12x = 0

Combine like terms: 3x + (-3x) = 0
0 + -12x = 0
-12x = 0

Solving
-12x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '-12'.
x = 0

Simplifying
x = 0

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